mirror of https://github.com/axmolengine/axmol.git
1008 lines
36 KiB
C++
1008 lines
36 KiB
C++
/****************************************************************************
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Copyright (c) 2015-2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "network/CCDownloader-curl.h"
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#include <set>
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#include <curl/curl.h>
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#include <thread>
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#include "base/CCDirector.h"
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#include "base/CCScheduler.h"
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#include "platform/CCFileUtils.h"
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#include "network/CCDownloader.h"
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#include "platform/PXFileStream.h"
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#include "md5/md5.h"
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// **NOTE**
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// In the file:
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// member function with suffix "Proc" designed called in DownloaderCURL::_threadProc
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// member function without suffix designed called in main thread
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#define CC_CURL_POLL_TIMEOUT_MS 50 //wait until DNS query done
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enum {
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kCheckSumStateSucceed = 1,
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kCheckSumStateFailed = 1 << 1,
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};
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namespace cocos2d { namespace network {
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using namespace std;
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////////////////////////////////////////////////////////////////////////////////
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// Implementation DownloadTaskCURL
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class DownloadTaskCURL : public IDownloadTask
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{
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static int _sSerialId;
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// if more than one task write to one file, cause file broken
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// so use a set to check this situation
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static set<string> _sStoragePathSet;
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public:
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int serialId;
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DownloadTaskCURL()
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: serialId(_sSerialId++), _requestHeaders(nullptr)
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{
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_initInternal();
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DLLOG("Construct DownloadTaskCURL %p", this);
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}
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virtual ~DownloadTaskCURL()
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{
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if (_errCode != DownloadTask::ERROR_TASK_DUPLICATED) {
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// if task destroyed unnormally, we should release WritenFileName stored in set.
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// Normally, this action should done when task finished.
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if (_tempFileName.length() && _sStoragePathSet.end() != _sStoragePathSet.find(_tempFileName))
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{
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DownloadTaskCURL::_sStoragePathSet.erase(_tempFileName);
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}
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}
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if (_fs)
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_fs.close();
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if (_fsMd5)
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_fsMd5.close();
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if (_requestHeaders)
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curl_slist_free_all(_requestHeaders);
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DLLOG("Destruct DownloadTaskCURL %p", this);
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}
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bool init(const string& filename, const string& tempSuffix)
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{
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if (0 == filename.length())
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{
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// data task
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_buf.reserve(CURL_MAX_WRITE_SIZE);
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return true;
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}
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// file task
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_fileName = filename;
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_tempFileName = filename;
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_tempFileName.append(tempSuffix);
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if (_sStoragePathSet.end() != _sStoragePathSet.find(_tempFileName))
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{
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// there is another task uses this storage path
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_errCode = DownloadTask::ERROR_TASK_DUPLICATED;
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_errCodeInternal = 0;
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_errDescription = "More than one download file task write to same file:";
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_errDescription.append(_tempFileName);
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return false;
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}
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_sStoragePathSet.insert(_tempFileName);
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// open temp file handle for write
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bool ret = false;
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do
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{
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string dir;
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size_t found = _tempFileName.find_last_of("/\\");
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if (found == string::npos)
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{
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_errCode = DownloadTask::ERROR_INVALID_PARAMS;
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_errCodeInternal = 0;
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_errDescription = "Can't find dirname in storagePath.";
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break;
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}
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// ensure directory is exist
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dir = _tempFileName.substr(0, found+1);
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if (!FileUtils::getInstance()->isDirectoryExistInternal(dir))
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{
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if (!FileUtils::getInstance()->createDirectory(dir))
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{
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_errCode = DownloadTask::ERROR_CREATE_DIR_FAILED;
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_errCodeInternal = 0;
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_errDescription = "Can't create dir:";
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_errDescription.append(dir);
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break;
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}
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}
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// open file
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_fs.open(_tempFileName, PXFileStream::kModeAppend);
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if (!_fs)
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{
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_errCode = DownloadTask::ERROR_OPEN_FILE_FAILED;
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_errCodeInternal = 0;
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_errDescription = "Can't open file:";
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_errDescription.append(_tempFileName);
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break;
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}
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// init md5 state
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_checksumFileName = filename + ".chksum";
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_fsMd5.open(_checksumFileName.c_str(), PXFileStream::kModeWrite);
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if (_fsMd5.seek(0, SEEK_END) != sizeof(md5_state_s)) {
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md5_init(&_md5State);
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}
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else {
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_fsMd5.seek(0, SEEK_SET);
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_fsMd5.read(&_md5State, sizeof(md5_state_s));
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}
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ret = true;
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} while (0);
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return ret;
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}
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void cancel() override
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{
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if (this->_sockfd != -1)
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{
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::shutdown(this->_sockfd, SD_BOTH); // will cause curl CURLE_SEND_ERROR(55) or CURLE_RECV_ERROR(56)
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this->_sockfd = -1;
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}
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}
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curl_socket_t openSocket(curlsocktype propose, curl_sockaddr* addr)
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{
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this->_sockfd = ::socket(addr->family, addr->socktype, addr->protocol);
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return this->_sockfd;
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}
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/*
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retval: 0. don't check, 1. check succeed, 2. check failed
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*/
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int checkFileMd5(const std::string& md5checksum, std::string* outsum = nullptr) {
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int status = 0;
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if (!md5checksum.empty()) {
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std::string digest(16, '\0');
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auto state = _md5State; // Excellent, make a copy, don't modify the origin state.
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md5_finish(&state, (md5_byte_t*)&digest.front());
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auto checksum = "";// nsc::bin2hex(digest);
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status = md5checksum == checksum ? kCheckSumStateSucceed : kCheckSumStateFailed;
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if (outsum != nullptr)
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*outsum = std::move(checksum);
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}
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return status;
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}
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void initProc()
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{
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lock_guard<mutex> lock(_mutex);
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_initInternal();
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}
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void setErrorProc(int code, int codeInternal, const char *desc)
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{
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lock_guard<mutex> lock(_mutex);
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_errCode = code;
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_errCodeInternal = codeInternal;
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_errDescription = desc;
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}
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size_t writeDataProc(unsigned char *buffer, size_t size, size_t count)
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{
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lock_guard<mutex> lock(_mutex);
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size_t ret = 0;
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auto bytes_transferred = size * count;
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if (_fs)
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{
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ret = _fs.write(buffer, bytes_transferred);// fwrite(buffer, size, count, _fp);
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}
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else
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{
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ret = bytes_transferred;
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auto cap = _buf.capacity();
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auto bufSize = _buf.size();
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if (cap < bufSize + ret)
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{
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_buf.reserve(bufSize * 2);
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}
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_buf.insert(_buf.end() , buffer, buffer + ret);
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}
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if (ret > 0)
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{
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_bytesReceived += ret;
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_totalBytesReceived += ret;
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::md5_append(&_md5State, buffer, bytes_transferred);
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_fsMd5.seek(0, SEEK_SET);
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_fsMd5.write(&_md5State, sizeof(_md5State));
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}
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curl_easy_getinfo(_curl, CURLINFO_SPEED_DOWNLOAD, &_speed);
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return ret;
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}
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private:
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friend class DownloaderCURL;
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// for lock object instance
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mutex _mutex;
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// header info
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bool _acceptRanges;
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bool _headerAchieved;
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int64_t _totalBytesExpected;
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double _speed;
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CURL* _curl;
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curl_socket_t _sockfd = -1; // store the sockfd to support cancel download manually
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string _header; // temp buffer for receive header string, only used in thread proc
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curl_slist* _requestHeaders;
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// progress
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int64_t _bytesReceived;
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int64_t _totalBytesReceived;
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// error
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int _errCode;
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int _errCodeInternal;
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string _errDescription;
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// for saving data
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string _fileName;
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string _tempFileName;
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std::string _checksumFileName;
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vector<unsigned char> _buf;
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PXFileStream _fs;
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// calculate md5 in downloading time support
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PXFileStream _fsMd5; // store md5 state realtime
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md5_state_s _md5State;
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void _initInternal()
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{
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_acceptRanges = (false);
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_headerAchieved = (false);
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_bytesReceived = (0);
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_totalBytesReceived = (0);
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_totalBytesExpected = (0);
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_speed = 0;
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_curl = nullptr;
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_errCode = (DownloadTask::ERROR_NO_ERROR);
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_errCodeInternal = (CURLE_OK);
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_header.resize(0);
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_header.reserve(384); // pre alloc header string buffer
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}
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};
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int DownloadTaskCURL::_sSerialId;
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set<string> DownloadTaskCURL::_sStoragePathSet;
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////////////////////////////////////////////////////////////////////////////////
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// Implementation DownloaderCURL::Impl
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// This class shared by DownloaderCURL and work thread.
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class DownloaderCURL::Impl : public enable_shared_from_this<DownloaderCURL::Impl>
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{
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public:
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DownloaderHints hints;
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Impl()
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// : _thread(nullptr)
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{
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DLLOG("Construct DownloaderCURL::Impl %p", this);
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}
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~Impl()
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{
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DLLOG("Destruct DownloaderCURL::Impl %p", this);
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}
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void addTask(std::shared_ptr<DownloadTask> task, DownloadTaskCURL* coTask)
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{
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int status = coTask->checkFileMd5(task->md5checksum);
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if (status & kCheckSumStateSucceed || DownloadTask::ERROR_NO_ERROR != coTask->_errCode)
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{
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_owner->_onDownloadFinished(std::make_pair(task, coTask), status);
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}
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else {
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lock_guard<mutex> lock(_requestMutex);
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_requestQueue.push_back(std::make_pair(task, coTask));
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}
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}
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void run()
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{
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lock_guard<mutex> lock(_threadMutex);
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if (!_thread.joinable())
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{
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std::thread newThread(&DownloaderCURL::Impl::_threadProc, this);
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_thread.swap(newThread);
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}
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}
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void stop()
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{ // make sure all task exit properly
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if (!_requestQueue.empty()) {
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lock_guard<mutex> lock(_requestMutex);
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_requestQueue.clear();
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}
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if (!_processSet.empty()) {
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lock_guard<mutex> lock(_processMutex);
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for (auto& task : _processSet)
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task.first->cancel();
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_processSet.clear();
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}
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if (_thread.joinable())
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_thread.join();
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}
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bool stoped()
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{
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lock_guard<mutex> lock(_threadMutex);
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return !_thread.joinable();
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}
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void getProcessTasks(vector<TaskWrapper>& outList)
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{
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lock_guard<mutex> lock(_processMutex);
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outList.reserve(_processSet.size());
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outList.insert(outList.end(), _processSet.begin(), _processSet.end());
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}
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private:
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static size_t _outputHeaderCallbackProc(void *buffer, size_t size, size_t count, void *userdata)
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{
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int strLen = int(size * count);
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DLLOG(" _outputHeaderCallbackProc: %.*s", strLen, buffer);
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DownloadTaskCURL& coTask = *((DownloadTaskCURL*)(userdata));
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coTask._header.append((const char *)buffer, strLen);
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return strLen;
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}
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static size_t _outputDataCallbackProc(void *buffer, size_t size, size_t count, void *userdata)
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{
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// DLLOG(" _outputDataCallbackProc: size(%ld), count(%ld)", size, count);
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DownloadTaskCURL *coTask = (DownloadTaskCURL*)userdata;
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// If your callback function returns CURL_WRITEFUNC_PAUSE it will cause this transfer to become paused.
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return coTask->writeDataProc((unsigned char *)buffer, size, count);
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}
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static int _progressCallbackProc(void *ptr, double totalToDownload, double nowDownloaded, double totalToUpLoad, double nowUpLoaded)
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{
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DownloaderCURL* downloader = (DownloaderCURL*)ptr;
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downloader->_onDownloadProgress();
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return 0;
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}
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static int _openSocketCallback(DownloadTaskCURL& pTask, curlsocktype propose, curl_sockaddr* addr)
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{
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return pTask.openSocket(propose, addr);
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}
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// this function designed call in work thread
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// the curl handle destroyed in _threadProc
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// handle inited for get header
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CURLcode _initCurlHandleProc(CURL *handle, TaskWrapper& wrapper, bool forContent = false)
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{
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const DownloadTask& task = *wrapper.first;
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DownloadTaskCURL* coTask = wrapper.second;
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/* Resolve host domain to ip */
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std::string internalURL = task.requestURL;
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// Curl_custom_setup(handle, internalURL, (void**)& coTask->_requestHeaders);
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// set url
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curl_easy_setopt(handle, CURLOPT_URL, internalURL.c_str());
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// set write func
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if (forContent)
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{
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curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, _outputDataCallbackProc);
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}
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else
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{
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curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, _outputHeaderCallbackProc);
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}
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curl_easy_setopt(handle, CURLOPT_WRITEDATA, coTask);
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// curl_easy_setopt(handle, CURLOPT_NOPROGRESS, true);
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// curl_easy_setopt(handle, CURLOPT_XFERINFOFUNCTION, _progressCallbackProc);
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/*curl_easy_setopt(handle, CURLOPT_XFERINFODATA, coTask);*/
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curl_easy_setopt(handle, CURLOPT_NOPROGRESS, false);
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curl_easy_setopt(handle, CURLOPT_PROGRESSDATA, _owner);
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curl_easy_setopt(handle, CURLOPT_PROGRESSFUNCTION, _progressCallbackProc);
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curl_easy_setopt(handle, CURLOPT_FAILONERROR, true);
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curl_easy_setopt(handle, CURLOPT_NOSIGNAL, 1L);
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curl_easy_setopt(handle, CURLOPT_OPENSOCKETFUNCTION, _openSocketCallback);
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curl_easy_setopt(handle, CURLOPT_OPENSOCKETDATA, coTask);
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if (forContent)
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{
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/** if server acceptRanges and local has part of file, we continue to download **/
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if (coTask->_acceptRanges && coTask->_totalBytesReceived > 0)
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{
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char buf[128];
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sprintf(buf, "%lld-", coTask->_totalBytesReceived);
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curl_easy_setopt(handle, CURLOPT_RANGE, buf);
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curl_easy_setopt(handle, CURLOPT_RESUME_FROM_LARGE,(curl_off_t)coTask->_totalBytesReceived);
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}
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}
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else
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{
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// get header options
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curl_easy_setopt(handle, CURLOPT_HEADER, 1);
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curl_easy_setopt(handle, CURLOPT_NOBODY, 1);
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}
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// if (!sProxy.empty())
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// {
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// curl_easy_setopt(curl, CURLOPT_PROXY, sProxy.c_str());
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// }
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if (hints.timeoutInSeconds)
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{
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curl_easy_setopt(handle, CURLOPT_CONNECTTIMEOUT, hints.timeoutInSeconds);
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}
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static const long LOW_SPEED_LIMIT = 1;
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static const long LOW_SPEED_TIME = 10;
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curl_easy_setopt(handle, CURLOPT_LOW_SPEED_LIMIT, LOW_SPEED_LIMIT);
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curl_easy_setopt(handle, CURLOPT_LOW_SPEED_TIME, LOW_SPEED_TIME);
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curl_easy_setopt(handle, CURLOPT_SSL_VERIFYHOST, 0);
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curl_easy_setopt(handle, CURLOPT_SSL_VERIFYPEER, 0);
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static const int MAX_REDIRS = 5;
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if (MAX_REDIRS)
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{
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curl_easy_setopt(handle, CURLOPT_FOLLOWLOCATION, true);
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curl_easy_setopt(handle, CURLOPT_MAXREDIRS, MAX_REDIRS);
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}
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coTask->_curl = handle;
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return CURLE_OK;
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}
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// get header info, if success set handle to content download state
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bool _getHeaderInfoProc(CURL *handle, TaskWrapper& wrapper)
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{
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DownloadTaskCURL& coTask = *wrapper.second;
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CURLcode rc = CURLE_OK;
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do
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{
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long httpResponseCode = 0;
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rc = curl_easy_getinfo(handle, CURLINFO_RESPONSE_CODE, &httpResponseCode);
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if (CURLE_OK != rc)
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{
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break;
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}
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// Comment follow code to support ftp
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/*if (200 != httpResponseCode)
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{
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char buf[256] = {0};
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sprintf(buf
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, "When request url(%s) header info, return unexcept http response code(%ld)"
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, wrapper.first->requestURL.c_str()
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, httpResponseCode);
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coTask.setErrorProc(DownloadTask::ERROR_IMPL_INTERNAL, CURLE_OK, buf);
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}*/
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|
|
// curl_easy_getinfo(handle, CURLINFO_EFFECTIVE_URL, &effectiveUrl);
|
|
// curl_easy_getinfo(handle, CURLINFO_CONTENT_TYPE, &contentType);
|
|
double contentLen = 0;
|
|
rc = curl_easy_getinfo(handle, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &contentLen);
|
|
if (CURLE_OK != rc)
|
|
{
|
|
break;
|
|
}
|
|
|
|
// std::transform(coTask._header.begin(), coTask._header.end(), coTask._header.begin(), ::toupper);
|
|
bool acceptRanges = true; // (string::npos != coTask._header.find("ACCEPT-RANGES")) ? true : false;
|
|
|
|
// get current file size
|
|
int64_t fileSize = 0;
|
|
if (acceptRanges && coTask._tempFileName.length())
|
|
{
|
|
fileSize = FileUtils::getInstance()->getFileSize(coTask._tempFileName);
|
|
}
|
|
|
|
// set header info to coTask
|
|
lock_guard<mutex> lock(coTask._mutex);
|
|
coTask._totalBytesExpected = (int64_t)contentLen;
|
|
coTask._acceptRanges = acceptRanges;
|
|
if (acceptRanges && fileSize > 0)
|
|
{
|
|
coTask._totalBytesReceived = fileSize;
|
|
}
|
|
coTask._headerAchieved = true;
|
|
} while (0);
|
|
|
|
if (CURLE_OK != rc)
|
|
{
|
|
coTask.setErrorProc(DownloadTask::ERROR_IMPL_INTERNAL, rc, curl_easy_strerror(rc));
|
|
}
|
|
return coTask._headerAchieved;
|
|
}
|
|
|
|
void _threadProc()
|
|
{
|
|
DLLOG("++++DownloaderCURL::Impl::_threadProc begin %p", this);
|
|
// the holder prevent DownloaderCURL::Impl class instance be destruct in main thread
|
|
auto holder = this->shared_from_this();
|
|
auto thisThreadId = this_thread::get_id();
|
|
uint32_t countOfMaxProcessingTasks = this->hints.countOfMaxProcessingTasks;
|
|
// init curl content
|
|
CURLM* curlmHandle = curl_multi_init();
|
|
unordered_map<CURL*, TaskWrapper> coTaskMap;
|
|
int runningHandles = 0;
|
|
CURLMcode mcode = CURLM_OK;
|
|
int rc = 0; // select return code
|
|
|
|
do
|
|
{
|
|
// check the thread should exit or not
|
|
{
|
|
lock_guard<mutex> lock(_threadMutex);
|
|
// if the Impl stoped, this->_thread.reset will be called, thus _thread.get_id() not equal with thisThreadId
|
|
if (thisThreadId != this->_thread.get_id())
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (runningHandles)
|
|
{
|
|
// get timeout setting from multi-handle
|
|
long timeoutMS = -1;
|
|
curl_multi_timeout(curlmHandle, &timeoutMS);
|
|
|
|
if(timeoutMS < 0)
|
|
{
|
|
timeoutMS = 1000;
|
|
}
|
|
|
|
/* get file descriptors from the transfers */
|
|
fd_set fdread;
|
|
fd_set fdwrite;
|
|
fd_set fdexcep;
|
|
int maxfd = -1;
|
|
|
|
FD_ZERO(&fdread);
|
|
FD_ZERO(&fdwrite);
|
|
FD_ZERO(&fdexcep);
|
|
|
|
mcode = curl_multi_fdset(curlmHandle, &fdread, &fdwrite, &fdexcep, &maxfd);
|
|
if (CURLM_OK != mcode)
|
|
{
|
|
break;
|
|
}
|
|
|
|
// do wait action
|
|
if(maxfd == -1)
|
|
{
|
|
this_thread::sleep_for(chrono::milliseconds(CC_CURL_POLL_TIMEOUT_MS));
|
|
rc = 0;
|
|
}
|
|
else
|
|
{
|
|
struct timeval timeout;
|
|
|
|
timeout.tv_sec = timeoutMS / 1000;
|
|
timeout.tv_usec = (timeoutMS % 1000) * 1000;
|
|
|
|
rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
|
|
}
|
|
|
|
if (rc < 0)
|
|
{
|
|
DLLOG(" _threadProc: select return unexpect code: %d", rc);
|
|
}
|
|
}
|
|
|
|
if (!coTaskMap.empty())
|
|
{
|
|
mcode = CURLM_CALL_MULTI_PERFORM;
|
|
while(CURLM_CALL_MULTI_PERFORM == mcode)
|
|
{
|
|
mcode = curl_multi_perform(curlmHandle, &runningHandles);
|
|
}
|
|
if (CURLM_OK != mcode)
|
|
{
|
|
break;
|
|
}
|
|
|
|
struct CURLMsg *m;
|
|
do {
|
|
int msgq = 0;
|
|
m = curl_multi_info_read(curlmHandle, &msgq);
|
|
if(m && (m->msg == CURLMSG_DONE))
|
|
{
|
|
CURL *curlHandle = m->easy_handle;
|
|
CURLcode errCode = m->data.result;
|
|
|
|
TaskWrapper wrapper = coTaskMap[curlHandle];
|
|
|
|
// remove from multi-handle
|
|
curl_multi_remove_handle(curlmHandle, curlHandle);
|
|
bool reinited = false;
|
|
do
|
|
{
|
|
if (CURLE_OK != errCode)
|
|
{
|
|
wrapper.second->setErrorProc(DownloadTask::ERROR_IMPL_INTERNAL, errCode, curl_easy_strerror(errCode));
|
|
break;
|
|
}
|
|
|
|
// if the task is content download task, cleanup the handle
|
|
if (wrapper.second->_headerAchieved)
|
|
{
|
|
break;
|
|
}
|
|
|
|
// the task is get header task
|
|
// first, we get info from response
|
|
if (!_getHeaderInfoProc(curlHandle, wrapper))
|
|
{
|
|
// the error info has been set in _getHeaderInfoProc
|
|
break;
|
|
}
|
|
|
|
// after get header info success
|
|
// wrapper.second->_totalBytesReceived inited by local file size
|
|
// if the local file size equal with the content size from header, the file has downloaded finish
|
|
if (wrapper.second->_totalBytesReceived &&
|
|
wrapper.second->_totalBytesReceived == wrapper.second->_totalBytesExpected)
|
|
{
|
|
// the file has download complete
|
|
// break to move this task to finish queue
|
|
break;
|
|
}
|
|
// reinit curl handle for download content
|
|
curl_easy_reset(curlHandle);
|
|
auto error = _initCurlHandleProc(curlHandle, wrapper, true);
|
|
if (error != CURLE_OK)
|
|
{
|
|
wrapper.second->setErrorProc(DownloadTask::ERROR_IMPL_INTERNAL, error, curl_easy_strerror(error));
|
|
break;
|
|
}
|
|
mcode = curl_multi_add_handle(curlmHandle, curlHandle);
|
|
if (CURLM_OK != mcode)
|
|
{
|
|
wrapper.second->setErrorProc(DownloadTask::ERROR_IMPL_INTERNAL, mcode, curl_multi_strerror(mcode));
|
|
break;
|
|
}
|
|
reinited = true;
|
|
} while (0);
|
|
|
|
if (reinited)
|
|
{
|
|
continue;
|
|
}
|
|
curl_easy_cleanup(curlHandle);
|
|
DLLOG(" _threadProc task clean cur handle :%p with errCode:%d", curlHandle, errCode);
|
|
|
|
// remove from coTaskMap
|
|
coTaskMap.erase(curlHandle);
|
|
|
|
// remove from _processSet
|
|
{
|
|
lock_guard<mutex> lock(_processMutex);
|
|
if (_processSet.end() != _processSet.find(wrapper)) {
|
|
_processSet.erase(wrapper);
|
|
}
|
|
}
|
|
|
|
_owner->_onDownloadFinished(std::move(wrapper));
|
|
}
|
|
} while(m);
|
|
}
|
|
|
|
// process tasks in _requestList
|
|
auto size = coTaskMap.size();
|
|
while (0 == countOfMaxProcessingTasks || size < countOfMaxProcessingTasks)
|
|
{
|
|
// get task wrapper from request queue
|
|
TaskWrapper wrapper;
|
|
{
|
|
lock_guard<mutex> lock(_requestMutex);
|
|
if (!_requestQueue.empty())
|
|
{
|
|
wrapper = _requestQueue.front();
|
|
_requestQueue.pop_front();
|
|
}
|
|
}
|
|
|
|
// if request queue is empty, the wrapper.first is nullptr
|
|
if (! wrapper.first)
|
|
{
|
|
break;
|
|
}
|
|
|
|
wrapper.second->initProc();
|
|
|
|
// create curl handle from task and add into curl multi handle
|
|
CURL* curlHandle = curl_easy_init();
|
|
|
|
if (nullptr == curlHandle)
|
|
{
|
|
wrapper.second->setErrorProc(DownloadTask::ERROR_IMPL_INTERNAL, 0, "Alloc curl handle failed.");
|
|
_owner->_onDownloadFinished(std::move(wrapper));
|
|
continue;
|
|
}
|
|
|
|
// init curl handle for get header info
|
|
_initCurlHandleProc(curlHandle, wrapper);
|
|
|
|
// add curl handle to process list
|
|
mcode = curl_multi_add_handle(curlmHandle, curlHandle);
|
|
if (CURLM_OK != mcode)
|
|
{
|
|
wrapper.second->setErrorProc(DownloadTask::ERROR_IMPL_INTERNAL, mcode, curl_multi_strerror(mcode));
|
|
_owner->_onDownloadFinished(std::move(wrapper));
|
|
continue;
|
|
}
|
|
|
|
DLLOG(" _threadProc task create curl handle:%p", curlHandle);
|
|
coTaskMap[curlHandle] = wrapper;
|
|
lock_guard<mutex> lock(_processMutex);
|
|
_processSet.insert(wrapper);
|
|
}
|
|
} while (!coTaskMap.empty());
|
|
|
|
curl_multi_cleanup(curlmHandle);
|
|
DLLOG("----DownloaderCURL::Impl::_threadProc end");
|
|
}
|
|
|
|
thread _thread;
|
|
deque<TaskWrapper> _requestQueue;
|
|
set<TaskWrapper> _processSet;
|
|
// deque<TaskWrapper> _finishedQueue;
|
|
|
|
mutex _threadMutex;
|
|
mutex _requestMutex;
|
|
mutex _processMutex;
|
|
mutex _finishedMutex;
|
|
|
|
public:
|
|
DownloaderCURL* _owner = nullptr;
|
|
};
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Implementation DownloaderCURL
|
|
DownloaderCURL::DownloaderCURL(const DownloaderHints& hints)
|
|
: _impl(std::make_shared<Impl>())
|
|
, _currTask(nullptr)
|
|
{
|
|
DLLOG("Construct DownloaderCURL %p", this);
|
|
_impl->hints = hints;
|
|
_impl->_owner = this;
|
|
|
|
_transferDataToBuffer = [this](void *buf, int64_t len)->int64_t
|
|
{
|
|
DownloadTaskCURL& coTask = *_currTask;
|
|
int64_t dataLen = coTask._buf.size();
|
|
if (len < dataLen)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
memcpy(buf, coTask._buf.data(), dataLen);
|
|
coTask._buf.resize(0);
|
|
return dataLen;
|
|
};
|
|
}
|
|
|
|
DownloaderCURL::~DownloaderCURL()
|
|
{
|
|
_impl->stop();
|
|
DLLOG("Destruct DownloaderCURL %p", this);
|
|
}
|
|
|
|
IDownloadTask *DownloaderCURL::createCoTask(std::shared_ptr<DownloadTask>& task)
|
|
{
|
|
DownloadTaskCURL *coTask = new (std::nothrow) DownloadTaskCURL;
|
|
coTask->init(task->storagePath, _impl->hints.tempFileNameSuffix);
|
|
|
|
DLLOG(" DownloaderCURL: createTask: Id(%d)", coTask->serialId);
|
|
|
|
_impl->addTask(task, coTask);
|
|
_impl->run();
|
|
|
|
// _scheduler->resumeTarget(this);
|
|
return coTask;
|
|
}
|
|
|
|
void DownloaderCURL::_onDownloadFinished(TaskWrapper&& wrapper, int checkState)
|
|
{
|
|
const DownloadTask& task = *wrapper.first;
|
|
DownloadTaskCURL& coTask = *wrapper.second;
|
|
|
|
// if there is bytesReceived, call progress update first
|
|
if (coTask._bytesReceived)
|
|
{
|
|
_currTask = &coTask;
|
|
task.progressInfo.bytesReceived = coTask._bytesReceived;
|
|
task.progressInfo.totalBytesReceived = coTask._totalBytesReceived;
|
|
task.progressInfo.totalBytesExpected = coTask._totalBytesExpected;
|
|
task.progressInfo.speedInBytes = coTask._speed;
|
|
onTaskProgress(task,
|
|
_transferDataToBuffer);
|
|
coTask._bytesReceived = 0;
|
|
_currTask = nullptr;
|
|
}
|
|
|
|
// if file task, close file handle and rename file if needed
|
|
if (coTask._fs)
|
|
{
|
|
do
|
|
{
|
|
auto pFileUtils = FileUtils::getInstance();
|
|
coTask._fs.close();
|
|
coTask._fsMd5.close();
|
|
|
|
if (checkState & kCheckSumStateSucceed) // No need download
|
|
{
|
|
PXFileStream fsOrigin;
|
|
if (fsOrigin.open(coTask._fileName)) {
|
|
task.progressInfo.totalBytesExpected = fsOrigin.seek(0, SEEK_END);
|
|
task.progressInfo.bytesReceived = task.progressInfo.totalBytesExpected;
|
|
task.progressInfo.totalBytesReceived = task.progressInfo.totalBytesExpected;
|
|
task.progressInfo.speedInBytes = task.progressInfo.totalBytesExpected;
|
|
coTask._errCode = DownloadTask::ERROR_NO_ERROR;
|
|
coTask._errCodeInternal = 0;
|
|
coTask._errDescription = "";
|
|
|
|
pFileUtils->removeFile(coTask._tempFileName);
|
|
|
|
onTaskProgress(task,
|
|
_transferDataToBuffer);
|
|
}
|
|
else {
|
|
coTask._errCode = DownloadTask::ERROR_ORIGIN_FILE_MISSING;
|
|
coTask._errCodeInternal = 0;
|
|
coTask._errDescription = "Check file md5 succeed, but the origin file is missing!";
|
|
pFileUtils->removeFile(coTask._checksumFileName);
|
|
pFileUtils->removeFile(coTask._tempFileName);
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (coTask._fileName.empty() || DownloadTask::ERROR_NO_ERROR != coTask._errCode)
|
|
{
|
|
if (coTask._errCodeInternal == CURLE_RANGE_ERROR) {
|
|
// If CURLE_RANGE_ERROR, means the server not support resume from download.
|
|
pFileUtils->removeFile(coTask._checksumFileName);
|
|
pFileUtils->removeFile(coTask._tempFileName);
|
|
}
|
|
break;
|
|
}
|
|
|
|
// if file already exist, remove it
|
|
if (pFileUtils->isFileExistInternal(coTask._fileName))
|
|
{
|
|
if (!pFileUtils->removeFile(coTask._fileName))
|
|
{
|
|
coTask._errCode = DownloadTask::ERROR_REMOVE_FILE_FAILED;
|
|
coTask._errCodeInternal = errno;
|
|
coTask._errDescription = "Can't remove old file: ";
|
|
coTask._errDescription.append(coTask._fileName);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
// Try check sum with md5 digest
|
|
std::string realMd5;
|
|
if (coTask.checkFileMd5(task.md5checksum, &realMd5) & kCheckSumStateFailed) {
|
|
coTask._errCode = DownloadTask::ERROR_CHECK_SUM_FAILED;
|
|
coTask._errCodeInternal = 0;
|
|
coTask._errDescription = StringUtils::format("Check file: %s md5 failed, required:%s, real:%s", coTask._fileName.c_str(),
|
|
task.md5checksum.c_str(),
|
|
realMd5.c_str());
|
|
|
|
pFileUtils->removeFile(coTask._checksumFileName);
|
|
pFileUtils->removeFile(coTask._tempFileName);
|
|
break;
|
|
}
|
|
|
|
// remove file firstly, confirm rename file work fine.
|
|
pFileUtils->removeFile(coTask._fileName);
|
|
if (pFileUtils->renameFile(coTask._tempFileName, coTask._fileName))
|
|
{
|
|
// success, remove storage from set
|
|
DownloadTaskCURL::_sStoragePathSet.erase(coTask._tempFileName);
|
|
break;
|
|
}
|
|
|
|
// failed
|
|
coTask._errCode = DownloadTask::ERROR_RENAME_FILE_FAILED;
|
|
coTask._errCodeInternal = 0;
|
|
coTask._errDescription = "Can't renamefile from: ";
|
|
coTask._errDescription.append(coTask._tempFileName);
|
|
coTask._errDescription.append(" to: ");
|
|
coTask._errDescription.append(coTask._fileName);
|
|
} while (0);
|
|
|
|
}
|
|
|
|
// needn't lock coTask here, because tasks has removed form _impl
|
|
onTaskFinish(task, coTask._errCode, coTask._errCodeInternal, coTask._errDescription, coTask._buf);
|
|
DLLOG(" DownloaderCURL: finish Task: Id(%d)", coTask.serialId);
|
|
}
|
|
|
|
void DownloaderCURL::_onDownloadProgress()
|
|
{
|
|
vector<TaskWrapper> tasks;
|
|
|
|
// update processing tasks
|
|
_impl->getProcessTasks(tasks);
|
|
for (auto& wrapper : tasks)
|
|
{
|
|
const DownloadTask& task = *wrapper.first;
|
|
DownloadTaskCURL& coTask = *wrapper.second;
|
|
|
|
lock_guard<mutex> lock(coTask._mutex);
|
|
if (coTask._bytesReceived)
|
|
{
|
|
_currTask = &coTask;
|
|
task.progressInfo.bytesReceived = coTask._bytesReceived;
|
|
task.progressInfo.totalBytesReceived = coTask._totalBytesReceived;
|
|
task.progressInfo.totalBytesExpected = coTask._totalBytesExpected;
|
|
task.progressInfo.speedInBytes = coTask._speed;
|
|
onTaskProgress(task,
|
|
_transferDataToBuffer);
|
|
_currTask = nullptr;
|
|
coTask._bytesReceived = 0;
|
|
}
|
|
}
|
|
tasks.resize(0);
|
|
}
|
|
|
|
}} // namespace cocos2d::network
|
|
|